Purity you can verify is only a slogan until you can check the work. This library explains, in plain language, how research peptide testing and documentation actually function: what the instruments measure, what the paperwork means, and how to hold any vendor (including us) to the same standard. Every Elutide vial ships with a lot-specific Certificate of Analysis and a QR code that resolves to its lab results.
How to Read a Peptide Certificate of Analysis
Learn how to read a peptide Certificate of Analysis: HPLC purity, mass spec identity, endotoxin results, accreditation, and the red flags to watch for.
Lot Verification: Scan a Vial, See Its Lab Results
Peptide lot verification at Elutide: scan the QR code on any vial's insert to see the independent lab results for that exact lot. Here's how it works.
Why Independent Third-Party Peptide Testing Matters
Third-party peptide testing explained: why independent labs matter, what ISO/IEC 17025 accreditation covers, and how to verify a COA is real.
10 Questions to Ask Before Buying Research Peptides
A practical checklist before buying research peptides: 10 questions on lot testing, lab accreditation, COAs, and how to verify answers yourself.
What HPLC Purity Testing Actually Measures
HPLC purity testing explained: how chromatograms, retention times, and area-under-curve math turn a peptide sample into a purity percentage you can verify.
Mass Spectrometry: How Peptide Identity Is Confirmed
How mass spectrometry confirms peptide identity: ESI vs MALDI-TOF, monoisotopic vs average mass, ppm accuracy, and what a solid CoA identity result shows.
Endotoxin Testing: What LAL Results Mean
Endotoxin testing explained: how the LAL assay works, gel-clot vs chromogenic methods, what EU/mg numbers mean, and how to read results on a peptide CoA.
Peptide Purity Percentages: What 99% Actually Means
What 99% peptide purity actually means: HPLC area percent vs net peptide content, counterions, water, and why every purity claim needs a lot-specific CoA.
What Research-Grade Actually Means (and What It Doesn't)
Research-grade peptides explained: why the term has no official definition, and the lot-specific documentation that should stand behind it.
Lyophilized Peptide Storage and Stability Basics
Lyophilized peptide storage explained: why freeze-dried vials ship at ambient temperature, and how heat, light, and moisture drive degradation.
For Research Use Only. Not Intended for Human Consumption.